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(No Model.)

Y 'RJ J. HOWDON.

SOFT METAL CASTING APPARATUS. r No. 286,825. Patented Ootf 16, 1883.

FIGQR.

^ 'FIG.3.

INrT-ED STATES C ArrJNr OFFICE.

ROBERT J. HOVVDON, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF `TO THE CINCINNATI COFFIN COMPANY, OF SAME PLACE.

SOFT-METAL-CASTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 286,825, dated October 16, 1883,

Application filed August '24, 1883. (No model.)

T (LZ zu17/1.0717. it may concern.-

Be it known that I, ROBERT J. HowDoN,

a citizen of the United States, residing at Cinv cinnati, in the county of Hamilton and State I of Ohio, have invented certain new and useful Improvements in Soft-Metal-Casting Apparatus, of which the following is a specication, reference being had therein to the accompanying drawings.

The object of my invention is to furnish an apparatus or implement wherewith hollow castings can be made from soft metal in the most uniform and expeditious manner. Said apparatus or implement consists, essentially,

of atwo-part mold or flask adapt-ed to swing in j ournal-bearings of a frame or standard, which latter is preferably mounted on the furnace and in close proximity to the crucible, kettle, or other vessel employed for fusing the 2o soft metal or alloy. Adapted to enter the upper end of the mold is a hollow core or mandrel, which serves as the leader that conducts the molten metal into the matrix, said core being provided with a cam-lever or any equiva- 2 5 lent device that will enable the core to be readily withdrawn .after the metal has had time to set or become sufficiently hardened. Furthermore, when the mold is inverted, this hollow core enables the surplus metal to run 0 3o out of the matrix and be discharged' into an inclined trough or chute, which chute conducts the metal back into the crucible, as hereinafter more fully described, and pointed out in the claims.

In the annexed drawings, Figure l is a side elevation of my improved casting apparatus, a portion of the frame being broken away and the inclined chute sectioned. Fig. 2 is a front elevation of said apparatus. Fig. 3 is 4o an elevation of that part of the mold which is provided with the journals or pivots. Fig.

4 is an axial section through the mold when in condition to receive the molten metal. Fig.

5 is an elevation of the upper part of the apparatus, the hollow core being shown as in the act of being withdrawn from the mold. Fig. 6 is a horizontal section of the mold, taken at the line 7 7 of Fig. 4.

Referring to Figs. 1 and 2, A represents part 5o of a furnace, and B a port-ion of a retort, crucible, or other vessel in which `the soft met-a1 or alloy is melted.

Attached to the furnace is a vertical frame or standard, C, having an eye, D, and a slotted bearing, D', which receive, respectively, the journals or pivots E E', that project laterally from the member F of a two-part flask or mold, F G, said mold being preferably of brass, although any other metal or material may be used.

Applied to the longer journal E is a handle, H. i

As seen in Fig. 3, the part F of the mold has a bore, I, that communicates with the neck J of the matrix K, which latter may be of any desired shape, but is here shown as adapted to produce the hollow tips usually applied to the ends of Collin-handles. This bore, neck, and matrix is exactly duplicated in the other part, G, of. the mold, as seen at I J K in Fig. 4, 7o said member G being furnished with a hanl dle, L f

N are holes, and u dowpel-pins or other guides, that insure the proper meeting of the two part-s F G of the mold. Y

Adapted to lit snugly within the bore I I of the complete mold is a hollow core, O, having a shoulder, o, that rests on the top of said mold.

Furthermore, the exposed portion of this core has pivoted toit, at p, a lever, P, terlninating at the shorter end with a cam, B.

S is an inclined trough or chute, so applied to the frame C as t-o conduct any surplus metal back into the crucible B. i

The method of using my casting apparatus or implement is as follows: The two parts F G of the flask are iirst coupled together with pins n, and the hollow Vor tubular core O is inserted in said ilask as far as the shoulder o will permit, after which act the journal E is fitted in eye D, while the other journal, E, .is seated in the slotted bearing D', thereby leaving said flask at liberty to swing freely in the frame C. The operator then grasps the handle L, so as to preserve the flask or mold in the erect position seen in Figs. l and 2, and proceeds at once to pour the molten metal in at the upper end of the hollow core O. Sufficient metal is poured in to lill the matrix J J K K', and after the metal has remained in 10o the mold a minute or more, according to the nature of the alloy used, said mold is inverted, as indicated by the dotted lines in Fig. l. This inversion causes the surplus metal to ilow out of the hollow core O, and to be discharged into the trough S, from which it runs into the Crucible B, the hardened metal remaining in the mold in the condition of a shell that conforms to the shape of the matrix. The mold is now swung back to its original position, and lever P is raised so as to cause its cam R to bear on the top of said mold, and thus draw rallowed to drop out of the matrix J J K KJ,

after which act the above-described op erations are repeated.

By referring to Fig. 4, it will be seen that core 0 lits very snugly within the bore I I of the mold, while a little clearance is left be tween said core and neck J J of the matrix.

Consequently the soft metal or alloy cannot enter the bore I I, although it flows freely into the neck J J, andof course causes the interior surface of the metal in said neck to. correspond in shape with the exterior form of said core. Now, by referring to Fig. G, it will be noticed that the core is hexagonal in transverse section, and hence the opening formed in the neck of the shell by said core; must be six-sided, which shape enables said shell to be readily applied to the hexagonal` bars of which eofiin-handles are made; but the j shape of the core may be varied so as to cause the neck of the shell to have any desired form, j according to the use said shell is to be put to. Again, the frame C may be omitted, and the two-part flask or mold be grasped by a vise 4o or other holder while being charged with the molten metal.

In an inferior modification of my invention the hollow core may be dispensed with, and the neck of the cast shell may be trimmed out 4 5 so as to iit on the article it is intended for. Finally, the flask or mold may be made in three or more sections 5 but two parts are pre ferred, because they can be constructed very cheaply, and can be used with the utmost 5o facility.

I claim as my invention- 1. A casting apparatus or implement eonsisting of the two-part mold F G, having a suitable matrix and a bore, I, communicating 55 therewith, said member F heilig provided with pivots E E', and the mold being furnished with a detachable hollow core, O, for the objectstated.

2. The combination, in a casting apparatus, 6o of two-part mold F E E G, detachable hollow core O, and the pivoted camilcver Pp R, said mold being provided with a suitable matrix and a channel communicating therewith, as and for the purpose specified.

3. An improved casting apparatus, consisting of the supporting-frame C D D', two-part mold F E E G, detachable hollow core O, cam-lever Pp It, and trough S, said mold being furnished with a suitable matrix and a 7o channel communicating therewith, for the purpose stated. A

In testimony whereof I affix my signature in presence of two witnesses.

ROBERT J. HOXVDQN.

lVitnesses:

.Turns H. LAYMAN, SMIL. S'. CARPENTER. 

